Brian K. Vaughan was a writer and producer on Lost in seasons 3 through 5.

He was initially hired an executive story editor during the Season 3 hiatus, according to his blog. He became a co-producer for the fourth season. He was promoted to producer for the fifth season. He left prior to the show's sixth and final season.

Vaughan is known for his extensive work writing for numerous comic titles from DC Comics and Marvel Comics, most famously co-creating Y: The Last Man. He has been recognized with numerous awards including an Eisner Award in 2005 for Best Writer for Y: The Last Man, Runaways, and Ex Machina. He has also been honored by the Arab American National Museum for his recent original work, the graphic novel Pride of Baghdad. Vaughan follows two other writers who also came to Lost's writing team from the comics world, Paul Dini and Jeph Loeb.

Vaughan also is the winner of Wired magazine's 2007 Rave Awards for "Print" [1].